Do think that many of us need to cut down on how much we are watching on tv and other media about this. All you really need is a once a day quick update to know if there are any new rules, etc. Apart from that, stay away and use the media to watch light programmes, comedies, etc. listen to pleasant music, read some books. If you have a tv recording device, then this is a good time to catch up on those programmes you recorded and never had time to watch. Use catch-up tv if you have it available.~
To help with sleep, do try as far as possible to keep to your normal daytime schedule, getting up and going to bed at usual times, meals at normal times. Take more time in preparation of meals, clean out and tidy up cupboards (even if they have recently been tidied). Do some daily exercise, If you are scared or unable to go outside for this is an area which has few othe people, then do a suitable short work out at home. Lots of advice on what on line, etc.
Write a diary of what you are doing, write letters to your loved ones, even if you do not send them now, have them ready to send in time to come,
Think positively about the future......even start to plan things you intend to do next year, when this nightmare will largely be behind us.
Remember to make a noise at 8 pm tonight in your gardens, on your balcony, at the window.......clap, bang a spoon on a saucepan, cheer, etc. for all the thousands of wonderful people who are keeping some sort of normality and looking after us all.